| Title | Photochemical and photophysical properties of three carbon-bridged fullerene dimers: C-121 (I, II, III) |
| Authors | Ren, Tongxiang Sun, Baoyun Chen, Zhenling Qu, Li Yuan, Hui Gao, Xingfa Wang, Shukuan He, Rui Zhao, Feng Zhao, Yuliang Liu, Zhongshi Jing, Xiping |
| Affiliation | Chinese Acad Sci, Inst High Energy Phys, Lab Bioenvironm Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China. Natl Ctr Nanosci & Technol, Beijing 100080, Peoples R China. Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China. |
| Keywords | PHOTOINDUCED ELECTRON-TRANSFER PHOTOVOLTAIC CELLS C-60 DIMER POLYMER METHANOFULLERENE C120O C-120 BUCKMINSTERFULLERENE HETEROJUNCTIONS PHOTODIODES |
| Issue Date | 2007 |
| Publisher | journal of physical chemistry b |
| Citation | JOURNAL OF PHYSICAL CHEMISTRY B.2007,111,(23),6344-6348. |
| Abstract | The photochemical and photophysical properties of the three C-121 isomers (I, II, III) were investigated with MADLI-TOF-MS, UV-vis spectra, fluorescence spectra, absorption spectra of their DMA complexes, and theoretical calculations. The three isomers of C-121 (I, II, III) have different stabilities under laser irradiation, but isomer I and isomer II show good stability against the heat-induced conversion between different isomers: No conversion between the isomers was found after heating the mixture of isomer I and isomer II at 353 K for 12 h in Ar atmosphere. The results of UV-vis absorption and fluorescence spectra indicate that interactions between two C-60 moieties of C60CC60 in the ground and singlet states are not significant, C-121 (I, II, III) behaves as an electron-acceptor similar to C-60. These indicate that the formation of the fullerene chain structure (e.g., C60CC60) does not disturb the photochemical and photophysical properties of the C-60 monomer itself, even that the properties were enhanced by the formation of the polymer. This is significant for the C-60 polymer in photochemical or photoelectronic applications in which C60CC60 can be an excellent basic unit of polymers. |
| URI | http://hdl.handle.net/20.500.11897/250139 |
| ISSN | 1520-6106 |
| DOI | 10.1021/jp0701688 |
| Indexed | SCI(E) EI |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 稀土材料化学与应用国家重点实验室 |
